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1. 发明授权

US6010673A Method for purifying exhaust gas 失效
标题翻译：废气净化方法
公开(公告)号：US6010673A
公开(公告)日：2000-01-04
申请号：US608948
申请日：1996-02-29
申请人： Takaaki Kanazawa , Shinichi Matsumoto , Satoshi Iguchi , Kenji Katoh , Toshiaki Tanaka , Shinichi Takeshima , Tsuneyuki Tanizawa , Koichi Kasahara , Syuji Tateishi , Hideaki Muraki
发明人： Takaaki Kanazawa , Shinichi Matsumoto , Satoshi Iguchi , Kenji Katoh , Toshiaki Tanaka , Shinichi Takeshima , Tsuneyuki Tanizawa , Koichi Kasahara , Syuji Tateishi , Hideaki Muraki
IPC分类号： B01D53/94 , B01J23/58
CPC分类号： B01D53/945 , B01J23/58 , Y02T10/22
摘要： A method for purifying an exhaust gas by simultaneously removing carbon monoxide, hydrocarbons, and nitrogen oxides contained in the exhaust gas, comprising bringing the oxygen rich exhaust gas into contact with an exhaust gas purifying catalyst comprised of at least one noble metal selected from the group consisting of platinum and palladium, at least one alkaline earth metal selected from the group consisting of barium, magnesium, calcium, and strontium, and at least one alkali metal selected from the group consisting of iron, nickel, and cobalt, supported on a carrier composed of a porous substance.
摘要翻译：一种废气净化方法，其特征在于，通过同时除去废气中含有的一氧化碳，烃类，氮氧化物，使排气与含有至少一种贵金属的废气净化催化剂接触，由铂和钯组成的至少一种选自钡，镁，钙和锶的碱土金属和至少一种选自铁，镍和钴的碱金属，负载在载体上由多孔物质组成。

2. 发明授权

US5911960A Process for purifying exhaust gases 失效
标题翻译：废气净化工艺
公开(公告)号：US5911960A
公开(公告)日：1999-06-15
申请号：US544260
申请日：1995-10-17
申请人： Naoto Miyoshi , Shinichi Matsumoto , Tsuneyuki Tanizawa , Satoshi Iguchi , Toshiaki Tanaka , Shinichi Takeshima , Takaaki Kanazawa , Takahiro Hayashi , Motohisa Saiki , Kazuhiko Dohmae , Kiyoshi Yamazaki , Tadashi Suzuki , Koichi Kasahara , Syuji Tateishi
发明人： Naoto Miyoshi , Shinichi Matsumoto , Tsuneyuki Tanizawa , Satoshi Iguchi , Toshiaki Tanaka , Shinichi Takeshima , Takaaki Kanazawa , Takahiro Hayashi , Motohisa Saiki , Kazuhiko Dohmae , Kiyoshi Yamazaki , Tadashi Suzuki , Koichi Kasahara , Syuji Tateishi
IPC分类号： B01D53/94 , B01J23/58 , B01J23/63 , B01J23/652 , B01J23/656 , B01J23/89 , B01J37/02 , B01D53/60
CPC分类号： B01D53/945 , B01D53/9422 , B01J23/58 , B01J23/63 , B01J23/6522 , B01J23/6562 , B01J23/894 , B01J37/0242 , B01D2255/1021 , B01D2255/1023 , B01D2255/202 , B01D2255/204 , B01D2255/2042 , B01D2255/2063 , B01D2255/2065 , B01D2255/2073 , B01D2255/20738 , B01D2255/20746 , B01D2255/20753 , B01D2255/91 , Y02T10/22
摘要： A catalyst for purifying exhaust gases includes a porous support, at least one catalyst ingredient selected from Pt and Pd, and additional ingredients including (1) at least two rare-earth elements including La, (2) at least one rare-earth element including La and at least one transition element selected from Fe, Ni, Co and Mn, (3) at least two alkali metals, (4) at least one alkali metal and at least one rare-earth element including La, (5) at least one alkali metal and at least one transition element selected from Fe, Ni, Co and Mn, (6) at least two alkaline-earth metals, (7) at least one alkaline-earth metal and at least one rare-earth element including La, or (8) Ba, Li, La, Ce and Zr. A process for purifying an exhaust gas, by contacting the catalyst with an exhaust gas, is also provided.
摘要翻译：用于净化废气的催化剂包括多孔载体，至少一种选自Pt和Pd的催化剂成分，以及另外的成分，包括（1）至少两种稀土元素，包括La，（2）至少一种稀土元素，包括 La和至少一种选自Fe，Ni，Co和Mn的过渡元素，（3）至少两种碱金属，（4）至少一种碱金属和至少一种包含La的稀土元素，（5）至少一种碱金属和至少一种选自Fe，Ni，Co和Mn的过渡元素，（6）至少两种碱土金属，（7）至少一种碱土金属和至少一种包含La的稀土元素，或（8）Ba，Li，La，Ce和Zr。还提供了一种通过使催化剂与废气接触来净化废气的方法。

3. 发明授权

US5951956A Catalyst for purifying exhaust gas and method for purifying exhaust gas 失效
标题翻译：废气净化催化剂及排气净化方法
公开(公告)号：US5951956A
公开(公告)日：1999-09-14
申请号：US391841
申请日：1995-02-17
申请人： Hideaki Muraki , Motohisa Saiki , Mariko Adachi , Shinichi Matsumoto , Takaaki Kanazawa , Kenji Katoh , Satoshi Iguchi , Tetsuro Kihara , Syuji Tateishi , Koichi Kasahara
发明人： Hideaki Muraki , Motohisa Saiki , Mariko Adachi , Shinichi Matsumoto , Takaaki Kanazawa , Kenji Katoh , Satoshi Iguchi , Tetsuro Kihara , Syuji Tateishi , Koichi Kasahara
IPC分类号： B01D53/94 , B01J23/10 , B01J23/58 , B01J23/63 , B01J37/02 , B01D53/68
CPC分类号： B01D53/945 , B01J23/10 , B01J23/58 , B01J23/63 , B01J37/0242 , Y02T10/22
摘要： A catalyst for purifying an exhaust gas for simultaneously removing carbon monoxide, hydrocarbons and nitrogen oxides contained in the exhaust gas under an oxygen rich atmosphere, comprising a carrier composed of a porous material, and barium oxide, lanthanum oxide and platinum supported on the carrier, and a method for purifying an exhaust gas by bringing the exhaust gas under an oxygen rich atmosphere into contact with the above-mentioned catalyst.
摘要翻译：一种用于净化排气的催化剂，用于同时除去在富氧气氛下包含在废气中的一氧化碳，烃和氮氧化物，其包括由多孔材料构成的载体和负载在载体上的氧化钡，氧化镧和铂，以及通过使排气在富氧气氛下与上述催化剂接触来净化废气的方法。

4. 发明授权

US6159897A Catalyst for purifying exhaust gases 有权
标题翻译：废气净化催化剂
公开(公告)号：US6159897A
公开(公告)日：2000-12-12
申请号：US201124
申请日：1998-11-30
申请人： Hiromasa Suzuki , Shinichi Matsumoto , Naoto Miyoshi , Kazunobu Ishibashi , Koichi Kasahara , Syuji Tateishi , Daisuke Suzuki
发明人： Hiromasa Suzuki , Shinichi Matsumoto , Naoto Miyoshi , Kazunobu Ishibashi , Koichi Kasahara , Syuji Tateishi , Daisuke Suzuki
IPC分类号： B01D53/86 , B01D53/94 , B01J21/06 , B01J23/40 , B01J23/42 , B01J23/58 , B01J23/63 , B01J21/12 , B01J23/02 , B01J23/10
CPC分类号： B01D53/945 , B01D53/9422 , B01D2255/1021 , B01D2255/1025 , B01D2255/2022 , B01D2255/2027 , B01D2255/2042 , B01D2255/2061 , B01D2255/2063 , B01D2255/2065 , B01D2255/91 , B01J21/063 , B01J21/066 , B01J23/58 , B01J23/63 , Y02T10/22
摘要： A catalyst for purifying exhaust gases includes a support including at le one composite selected from the group consisting of TiO.sub.2 --Al.sub.2 O.sub.3, ZrO.sub.2 --Al.sub.2 O.sub.3 and SiO.sub.2 --Al.sub.2 O.sub.3 composites, an NO.sub.x adsorbent including at least one member selected from the group consisting of alkali metals, alkaline-earth metals and rare-earth elements and loaded on the support, and a noble metal catalyst ingredient loaded on the support. The composites constituting the support improve initial NO.sub.x conversion of the catalyst, but also inhibit NO.sub.x purifying performance thereof from degrading even after a durability test.
摘要翻译：一种用于净化废气的催化剂包括包含至少一种选自TiO 2 -Al 2 O 3，ZrO 2 -Al 2 O 3和SiO 2 -Al 2 O 3复合材料的复合材料的载体，包括选自碱金属，碱土金属和稀土元素并负载在载体上，贵金属催化剂成分装载在载体上。构成载体的复合体能够提高催化剂的初始NOx转化率，而且即使在耐久性试验后也能够抑制NOx净化性能的劣化。

5. 发明授权

US5762892A Process for purifying exhaust gases 失效
标题翻译：废气净化工艺
公开(公告)号：US5762892A
公开(公告)日：1998-06-09
申请号：US864894
申请日：1997-05-29
申请人： Koichi Kasahara , Syuji Tateishi , Naoto Miyoshi , Shinichi Matsumoto
发明人： Koichi Kasahara , Syuji Tateishi , Naoto Miyoshi , Shinichi Matsumoto
IPC分类号： B01D53/94 , B01J23/58 , B01J23/63
CPC分类号： B01D53/9422 , B01J23/58 , B01J23/63 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2042 , B01D2255/2063 , B01D2255/2065 , B01D2255/91
摘要： A catalyst for purifying carbon monoxide, hydrocarbons and nitrogen oxides in exhaust gases at the stoichiometric point or in oxygen-rich atmosphere, is disclosed, and it includes a porous support, at least one noble metal catalyst ingredient loaded on the porous support, and selected from the group consisting of platinum, palladium and rhodium, and at least one NO.sub.X adsorbent loaded on the porous support, selected from the group consisting of alkali metals, alkaline-earth metals and rare-earth elements, and having an average particle diameter falling in a range of from 0.1 to 20 micrometers. A process for purifying, by bringing the exhaust gases into contact with the catalyst, is also disclosed.
摘要翻译：公开了用于在化学计量点或富氧气氛中净化废气中的一氧化碳，烃和氮氧化物的催化剂，其包括多孔载体，至少一种负载在多孔载体上的贵金属催化剂成分，并且选择从由铂，钯和铑组成的组中，以及负载在多孔载体上的至少一种NO x吸附剂，其选自碱金属，碱土金属和稀土元素，平均粒径落入范围为0.1至20微米。还公开了通过使废气与催化剂接触来净化的方法。

6. 发明授权

US5948376A Catalyst for purifying exhaust gases 失效
标题翻译：废气净化催化剂
公开(公告)号：US5948376A
公开(公告)日：1999-09-07
申请号：US615789
申请日：1996-03-14
申请人： Naoto Miyoshi , Tuneyuki Tanizawa , Kazunobu Ishibashi , Koichi Kasahara , Syuji Tateishi
发明人： Naoto Miyoshi , Tuneyuki Tanizawa , Kazunobu Ishibashi , Koichi Kasahara , Syuji Tateishi
IPC分类号： B01D53/14 , B01D53/86 , B01D53/94 , B01J23/56 , B01J23/58 , B01J23/63 , B01J37/02
CPC分类号： B01D53/945 , B01D53/9481 , B01J23/58 , B01J23/63 , B01D2255/91 , B01J37/0248 , F01N2570/16 , Y02T10/22
摘要： A catalyst for purifying exhaust gases includes a porous support, an NO.sub.x storage component including at least one member selected from the group consisting of alkaline-earth metals, rare-earth elements and alkali metals, and loaded on the porous support, a noble metal catalyst ingredient loaded on the porous support, and disposed adjacent to the NO.sub.x storage component, and ceria (CeO.sub.2) disposed away from the noble metal catalyst ingredient. By disposing the noble metal catalyst ingredient adjacent to the NO.sub.x storage component, the reduction reactions of NO.sub.x can be facilitated in fuel-rich (i.e., oxygen-lean) atmospheres without being interfered by the ceria. By disposing the ceria away from the noble metal catalyst ingredient, oxygen, which has been stored thereon in fuel-lean (i.e., oxygen-rich) atmospheres, can be released from the ceria at a controlled rate in a controlled amount in fuel-rich (i.e., oxygen-lean) atmospheres, and thereby the released oxygen can be inhibited from reacting with HC and CO in fuel-rich (i.e., oxygen-lean) atmospheres. Thus, the catalyst is improved in terms of NO.sub.x purifying performance.
摘要翻译：用于净化废气的催化剂包括多孔载体，包含选自碱土金属，稀土元素和碱金属中的至少一种的负载在多孔载体上的NOx储存组分，贵金属催化剂负载在多孔载体上并且邻近于NOx储存组分设置的成分和远离贵金属催化剂成分的二氧化铈（CeO 2）。通过将贵金属催化剂成分配置在与NOx存储成分相邻的位置，可以在不受二氧化铈干扰的情况下，富含燃料（即贫氧）的气氛中的NOx的还原反应变得容易。通过将二氧化铈置于贵金属催化剂成分之外，其中储存在贫燃料（即富氧）气氛中的氧可以以受控的量在二氧化铈中以富含燃料的方式从二氧化铈中释放出来（即，贫氧）气氛，从而可以抑制释放的氧与富含燃料（即贫氧）气氛中的HC和CO反应。因此，NOx净化性能提高了催化剂。

7. 发明授权

US6004521A Catalyst for purifying exhaust gases 失效
标题翻译：废气净化催化剂
公开(公告)号：US6004521A
公开(公告)日：1999-12-21
申请号：US638045
申请日：1996-04-26
申请人： Naoto Miyoshi , Tuneyuki Tanizawa , Koichi Kasahara , Syuji Tateishi
发明人： Naoto Miyoshi , Tuneyuki Tanizawa , Koichi Kasahara , Syuji Tateishi
IPC分类号： B01D53/94 , B01J23/58 , B01J23/63 , B01J37/02 , F01N3/08
CPC分类号： B01D53/945 , B01J23/58 , B01J23/63 , B01J37/0248 , F01N3/0814 , F01N3/0842 , B01D2255/91 , F01N2570/14 , Y02T10/22
摘要： A catalyst for purifying exhaust gases includes a heat resistant support, a porous layer coated on the heat resistant support, a noble metal catalyst ingredient loaded on the porous layer, and an NO.sub.x storage component including at least one member selected from the group consisting of alkaline-earth metals, rare-earth elements and alkali metals, and loaded on the porous layer. In the catalyst, the noble metal catalyst ingredient and the NO.sub.x storage component are disposed adjacent to each other, and are dispersed uniformly in the porous layer. In fuel-lean (i.e., oxygen-rich) atmospheres, NO present in exhaust gases is oxidized to NO.sub.2 by the noble metal catalyst ingredient, and at the same time the resulting NO.sub.2 is stored in the NO.sub.x storage component which is disposed adjacent to the nobel metal catalyst. In the stoichiometric or fuel-rich (i.e., oxygen-lean) atmospheres, the stored NO.sub.2 is released, and simultaneously urged to react with HC and CO present in exhaust gases by the action of the noble metal catalyst ingredient which is disposed adjacent to the NO.sub.x storage component. Hence, the catalyst is improved in terms of NO.sub.x purifying performance.
摘要翻译：用于净化废气的催化剂包括耐热性载体，涂覆在耐热性载体上的多孔层，负载在多孔层上的贵金属催化剂成分和包含选自碱性物质中的至少一种的NO x储存组分 - 地面金属，稀土元素和碱金属，并负载在多孔层上。在催化剂中，贵金属催化剂成分和NOx存储成分彼此相邻配置，均匀地分散在多孔层中。在贫燃（即富氧）气氛中，废气中存在的NO被贵金属催化剂成分氧化成NO2，同时所得的NO 2储存在与诺贝尔金属催化剂。在化学计量或富燃料（即贫氧）气氛中，储存的NO 2被释放，并且同时被与贵金属催化剂成分相邻的贵金属催化剂成分的作用与存在于废气中的HC和CO反应 NOx储存组件。因此，在NOx净化性能方面，催化剂得到改善。

8. 发明授权

US5575983A Catalyst for purifying exhaust gases and process for purifying exhaust gases 失效
标题翻译：净化废气的催化剂和净化废气的过程
公开(公告)号：US5575983A
公开(公告)日：1996-11-19
申请号：US311360
申请日：1994-09-23
申请人： Hiromasa Suzuki , Koji Yokota , Tomoko Iijima , Tadashi Suzuki , Koichi Kasahara , Syuji Tateishi
发明人： Hiromasa Suzuki , Koji Yokota , Tomoko Iijima , Tadashi Suzuki , Koichi Kasahara , Syuji Tateishi
IPC分类号： B01D53/86 , B01D53/94 , B01J23/58 , B01J23/63 , F01N3/10 , B01J23/04
CPC分类号： B01D53/945 , B01J23/58 , Y02T10/22
摘要： A process for purifying an exhaust gas comprising carbon monoxide, hydrocarbons, nitrogen oxides, and sulfur oxides by periodically adjusting exhaust gas conditions from lean-burn to fuel-rich and by using a catalyst comprising an alumina support with lithium dissolved therein to form a solid solution, at least one first ingredient selected from the group consisting of platinum and palladium loaded on the alumina support, and at least one second ingredient selected from the group consisting of alkali elements, alkaline-earth elements, and rare-earth elements loaded on the support. Sulfates formed from sulfur oxides in the exhaust gas are decomposed by the lithium under the fuel-rich conditions to inhibit the alumina support from being acidified.
摘要翻译：通过周期性地调节从贫燃到富燃料的废气条件和通过使用包含溶解有锂的氧化铝载体的催化剂以形成固体来净化包含一氧化碳，烃，氮氧化物和硫氧化物的废气的方法溶液，选自负载在氧化铝载体上的铂和钯的至少一种第一成分和选自负载在氧化铝载体上的碱金属元素，碱土金属元素和稀土元素的至少一种第二成分支持。在废气中由硫氧化物形成的硫酸盐在富燃料条件下被锂分解，以抑制氧化铝载体的酸化。

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